There is very little difference between running TotalView and running ReplayEngine. With ReplayEngine enabled on a running program, use the special buttons GoBack, Prev, UnStep, Caller, or BackTo to go back in your program’s history to the statement you wish to examine.
Enabling and Disabling ReplayEngine
You can prepare a program for replay when you first load it into TotalView. Once the program is loaded, there are a number of ways to enable replay.